<template>
  <view v-if="goods_info.goods_name">
    <!-- 轮播图区域-->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click ="preview(i)" ></image>
      </swiper-item>
    </swiper>
    <!-- s商品信息区域-->
    <view class="goods-info-box">
      <!-- 商品价格-->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 商品主体区域-->
      <view class="goods-info-body"> 
        <!-- 商品名称-->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏-->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
        <text>收藏</text>
          
        </view>
      </view>
      <!-- 运费-->
      <view class="yf">
        快递；免运费 --{{cart.length}}
      </view>
    </view>
    
    <!-- 商品详情信息-->
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航区域-->
    <view class="goods_nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
    </view>
  </view>
  
    

</template>

<script>
  import{ mapState }from 'vuex'
  import {mapMutations}from 'vuex'
  import{mapGetters}from'vuex'
  
  export default { 
    computed:{
          ...mapState('m_cart',['cart']),
          ...mapGetters('m_cart',['total']),
        },
        watch:{
          total:{
            handler(newVal){
              const findResult = this.options.find((x)=>x.text ==='购物车')
          if(findResult){
            findResult.info = newVal
            }
          },
          immediate:true
          
          }
         
        },
    data() {
      return {
        //商品详情对象
        goods_info:{},
       
        options: [{
        			icon: 'shop',
        			text: '店铺'
        		}, {
        			icon: 'cart',
        			text: '购物车',
        			
        			
        		}],
        	    buttonGroup: [{
        	      text: '加入购物车',
        	      backgroundColor: '#ff0000',
        	      color: '#fff'
        	    },
        	    {
        	      text: '立即购买',
        	      backgroundColor: '#ffa200',
        	      color: '#fff'
        	    }
        	    ],
              
      };
    },
    onLoad(options) {
      //获取商品id
      const goods_id = options.goods_id
      //商品请求商品详情数据的方法
      this.getGoodsDetail(goods_id)
    },
    methods:{
      ...mapMutations('m_cart',['addToCart']),
      async getGoodsDetail(goods_id) {
        const { data: res } = await uni.$http.get('/api/public/v1/goods/detail', { goods_id })
        if (res.meta.status !== 200) return uni.$showMsg()
        res.message.goods_introduce =  res.message.goods_introduce.replace(/<img /g,'<img style="display:block"').replace(/webp/g,'jpg')
        // 为 data 中的数据赋值
        this.goods_info = res.message
      },
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      onClick(e) {
        console.log(e)
        if(e.content.text==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        console.log(e)
       if(e.content.text==='加入购物车'){
         const goods = {
           goods_id: this.goods_info.goods_id, 
           goods_name:this.goods_info.goods_name, 
           goods_price:this.goods_info.goods_price,
           goods_count:1,
           goods_small_logo:this.goods_info.goods_small_logo,
           goods_state:true
         }
         this.addToCart(goods)
       }
      }
      
  }
}
</script>

<style lang="scss">
  swiper{
    height: 750rpx;
    image{
      width: 100%;
      height: 100%;
    }
  }
  
  /* 商品信息区域*/
  .goods-info-box{
    padding: 10px;
    padding-right: 0;
    .price{
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }
    .goods-info-body{
      display: flex;
      justify-content: space-between;
      .goods-name{
        font-size: 13px;
        padding-right: 10px;
      }
      .favi{
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-left: 1px solid #efefef;
        color: grey;
      }
    }
    .yf{
      margin: 10px 0;
      font-size: 12px;
      color: gray;
    }
    
  }
 /* .goods-detail-container {
    // 给页面外层的容器，添加 50px 的内padding，
    // 防止页面内容被底部的商品导航组件遮盖
    padding-bottom: 50px;
  } */
  
  .goods_nav {
    // 为商品导航组件添加固定定位
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
  
</style>
